HPV is the most commonly transmitted STI in the United States, according to the CDC. About 50 percent of sexually active people will have HPV in their lifetime.

The CDC has already recommended a three-part vaccine for girls ages 11-12, and for females 13-26. HPV is a leading cause of cervical cancer in women. Although similar vaccines for males have always been available, they weren't necessarily encouraged.

According to the CDC, a three-part dosage of Gardasil or Cervarix will also prevent cancers in adulthood, as well as reduce risk of HPV transmission to women.

But why the push for boys to get the vaccine?

CNN: One reason for the push now is that girls aren't getting vaccinated in the numbers doctors expected. "If the boys are also immunized, it reduces the transmission back and forth," said Dr. William Schaffner, chairman of the Department of Preventative Medicine at Vanderbilt University, who attended the CDC meeting as an adviser but not a voting member.

By receiving the vaccine, boys will also be protected against cancers of the penis and rectum. Also, there is growing evidence of HPV causing the recent increase in head and neck cancer.

Still, the HPV vaccine has had its fair share of controversy. Critics argue that the vaccine encourages promiscuity, while others argue that pre-teens should not be treated for sexually transmitted diseases.

What do you think? Should boys get the shot as well? Leave your thoughts below in the comment section.